What are 6 parts of hypothesis? SIX STEPS FOR HYPOTHESIS TESTING. HYPOTHESES. ASSUMPTIONS. TEST STATISTIC (or Confidence Interval Structure) REJECTION REGION (or Probability Statement) CALCULATIONS (Annotated Spreadsheet) CONCLUSIONS. What are the six steps to the scientific method? The scientific method Make an observation. Ask a question. Form a hypothesis, or testable explanation. Make a prediction […]
Why has psychology changed over the years?
Why has psychology changed over the years? Psychology changed dramatically during the early 20th-century as another school of thought known as behaviorism rose to dominance. Instead, behaviorism strove to make psychology a more scientific discipline by focusing purely on observable behavior. Why do we need to know the history of psychology? Why is it important […]
What is the largest organelle in a cell?
What is the largest organelle in a cell? nucleus What are the two storage organelles? Two storage organelles are vesicles and vacuoles. Which organelle holds the cell together? Cell Structure and Function A B cell membrane thin outer covering that holds a cell together cytoplasm clear, jellylike material that fills the space between the cell […]
How does snow help a sled move down a hill?
Do the bubbles in boiling water contain air?
Do the bubbles in boiling water contain air? These bubbles are indeed air. Most water has some air dissolved in it. When water is boiled, it undergoes a physical change, not a chemical change. The molecules of water don’t break apart into hydrogen and oxygen. Do small bubbles mean water is boiling? So, when a […]
Who invented radioactive?
Who invented radioactive? Henri Becquerel How did we discover uranium? Uranium was discovered in 1789 by Martin Klaproth, a German chemist, who isolated an oxide of uranium while analyzing pitchblende samples from the Joachimsthal silver mines in the former Kingdom of Bohemia, located in the present day Czech Republic. He named his discovery “uran” after […]
Why is francium so reactive?
Why is francium so reactive? Explanation: Francium is an alkali metal in group 1/IA. All alkali metals have one valence electron. This makes it easier to remove the electron and makes the atom more reactive. Why is F2 so reactive? Why is fluorine gas (F2) reactive if it is already a molecule? This is because […]
What are 2 methods of disinfection?
What are 2 methods of disinfection? Disinfection methods include thermal and chemical processes. Moist heat may be used for items such as crockery, linen and bedpans e.g. automated processes in a machine. Specific chemical disinfectants can be used to decontaminate heat sensitive equipment and the environment. What disinfectant kills TB? Effective and economical mycobactericidal disinfectants […]
Can a fish live without eyes?
Is dull a metal or nonmetal?
Is dull a metal or nonmetal? Properties Metals Non-metals Appearance Shiny Dull State at room temperature Solid (except mercury, which is a liquid) About half are solids, about half are gases, and one (bromine) is a liquid Density High (they feel heavy for their size) Low (they feel light for their size) Strength Strong Weak […]